Abstract: To meet the efficient and precision machining requirements of new energy vehicle gears based on precision hobbing and power honing technology collaboration, a collaborative optimization method for gear hobbing and power honing process parameters is proposed. The process mechanisms of high-speed dry precision hobbing and internal power honing are analyzed to explore the relationship between process parameters and machining performance during integrated operations. A multi-objective collaborative optimization model for hobbing-honing parameters for high quality and highly efficient machining is established, and a multi-objective superb fairy-wren optimization algorithm is proposed for model solving. A TOPSIS method is adopted for parameter decision-making. The feasibility of the method is verified by combining experimental data. The results indicate that the new model can efficiently solve the process parameter optimization problem of gear hobbing and honing collaborative machining, providing a theoretical basis for improving the machining quality and efficiency of new energy vehicle gear production lines.